Multiple-effect evaporating apparatus



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(N0 Model.)

, T. GAUNT. MULTIPLE PPPPGT BVAPORATING APPARATUS. No. 447,816,

Patented Mar. 10.1891.

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T. GAUNT.

MULTIPLE PPPPGT PVAPORATING APPARATUS. No. 447,816. Patented Mar. 10.1891.

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Nirnn THOMAS GAUNT, OF BROOKLYN, NEV YORK.

MULTIPLE-EFFECT EVAPORATING APPARATUS.`

SPECIFICATION forming part of Letters Patent No. 447,816, dated March 10, 1891.

Application tiled February 14, 1890. Serial No. 340,440. (No model.)

ratus, and is an improvement upon evaporating apparatus substantially such as shown and described in United States Patent No. 409,572, granted to me August 20, 1889.

My present invention has for its object to provide a multiple-effect apparatus simple in' construction, efficient in operation, and which may be constructed at a minimum expense. My invention in an evaporating apparatus therefore consists in the combination, with an inclosing case, of one or more substantially vertical partitions 'dividing the said inclosing case into sections arranged side by side, a substantially vertical evaporating-surface composed of horizontally-arranged tubes or pipes, and a liquid-supply in each section located above said evaporating-surtace to discharge the liquor upon the surface in thin sheet or film, substantially as will be described.

Other features of my invention will be pointed out in the claims at the end of this specication.

Figure l is a front elevation, partially broken out, of multiple-effect evaporating apparatus embodying my invention. Fig. .2 is a transverse section of the apparatus shown in Fig. l ol'n the irregular line x or, and Fig. 3 is a vertical section of the apparatus shown in Fig. l on line looking toward the left. My improved apparatus is herein shown as composed of three sections A A A2, arranged and coupled together, as will be described, to form a triple-effect evaporating apparatus. Each section of the apparatus consists of a substantially vertically-arranged evaporating-surface composed, as herein shown, of tubes or pipes d, connected by intervening bridges a', and a liquid-supply (shown as a pipe CL2) located above the evaporatingsurface and provided with a delivery s lot or 'opening eX to discharge the liquor upon the evaporating-surt'ace in thin sheet or iilm, the said pipes being supported at their opposite ends, as shoWn,by castings or headers a3, into which the ends of the tubes may be expanded or otherwise secured. Each header a3 is provided with side iianges a4 and projecting ribs a5, to which are bolted or otherwise secured covers CLG, which form with each header a space subdivided into chambers a7 by horizontal partitions as, cast integral with the headers, substantially as in my patent referred to. The headers ot each section support a top plate o and a bottom plate b', provided, as herein shown, with ilanges b2, by which the said top and bottom plates may be bolted or otherwise secured to the said headers. The top plate b and bottom plate b are preferably made of such size as to leave a steamspace b3 above the evaporating-surface and a liquid-collecting space or chamber b4 below the evaporating-surface.N

The flanges a4 of the sections A and A2 have secured to them in any usual manner, as by bolts,(not herein shown,) side pieces 0r plates 0.12.

The top plate b has connected to it a vaporoutlet pipe b5, and the bottom plate b has connected to it a liquid-outlet pipe h6.

As herein shown, the headers of each section support two rows of tubes comprising the evaporating-surfaces.

The seotionsAA A2, arranged side by side, are separated from each other by partitions, herein shown as independent plates o, which are clamped between the flanges at ot' the headers and between the iianges c of adjacent top plates b and bottom plates b. 'The partitions c cut off communication between the chambers or space surrounding the evaporating-surface ot' the sections.

The liquid-feed pipes a2 communicate, as herein shown, with chambers d on opposite sides of the apparatus, andthe chambers cl of the section A have connected to them liquid-supply pipes d', herein shown as joined to a common supply-pipe d2, which in practice is connected to the source of liquor-supply.

The liquor-outlet pipe b of the section A is connected to apump d3 of any ordinary construction, and the outlet or discharge pipe d4 of the said pump is connected to the liquid- IOO supply d', communicating with the chambers (l of the second section A', and tl1eliquid-outlet pipe d5 for the section A is connected to a pump (Z6, and the discharge-pipe cZ7 for the said pump is connected to the liquid-supply pipes d for the section A2, and the liquidoutlet pipe d8 for the section A2 may be connected to a discharge-tank or other receptacle. (Notherein shown.) 'lhe evaporatingsurface of the irst section A may be heated by steam or other agent, preferably admitted through the pipe c, communicating, as shown in Fig. 3, with the uppermost, chamber a7 (marked 2,) the Water of condensation passing from the lowermost chamber a7 (marked 3) by the pipe c. The vapors or products of evaporation arising into the steam-space b3 Y w of the section A escape therefrom through vthe vapor-outlet pipe b5 and pass into the chamber 2 of the second section A', the said vapors constituting the heating agent for the evaporating-surface of the second. effect. The vapors passing from the chamber b3 of the second effect by the vapor-outlet e3, which is connected to the chambers 2 of the third effect A2, constitute the heating agent of the said third effect. The vapors from the chamber b3 of the third effect pass off through the vapor-outlet pipe c4,which may be connected to a condenser, (not shoWn,) but which may be of any usual or Well-known construction.

I have herein shown a triple effect; but it is evident that any other desired multiple effect may be made by adding or subtracting one or more sections and separating the remaining sections by the partitions c. By means of the partitions c a multiple-effect apparatus may be made much simpler in coustruction, and therefore much cheaper than heretofore.

It will be noticed that the headers, the top and bottom plates of the several sections, and the end plates @12 virtually form an inclosing case, which is subdivided into sections by the partitions c to form the multiple effect. So, also, I do not desire to limit myself to the particular form of evaporating-surface herein shown.

I claim- 1. In an evaporating apparatus, the combination, With an inclosing case, of one or more substantially vertical partitions dividing the said inclosing case4 into sections ar ranged side by side, a substantially vertical evaporating-surface composed of horizontally-arranged tubes or pipes, and a liquid-supply in each section, located above said evaporating-surface, to discharge the liquor upon the surface in thin sheet or film,substantially as described.

2. In an evaporating apparatus, the combination, with an inclosing case consisting of top, bottom, and end plates and headers, of one or more substantially vertical partitions dividing the said inclosing case into sections arranged side by sid e, and asubstan tially vertical evaporating-surface and liquid-supply in each section, located above said evaporatingsurface, to discharge the liquor upon the surface in thin sheet or iilm, substantially as described.

3. In an evaporating apparatus, the combination, with an inclosing case consisting of top, bottom, and end plates and headers, of one or more substantially vertical partitions dividing the said inclosing case into sections arranged side by side, an evaporating-surface consisting of tubes or pipes secured to said headers and arranged in av substantially vertical row, and a liquid feed or supply for each evaporating-surface, located above the said surface, to discharge the liquid upon the said surface in thin sheet or film, substantially as described.

4t. In an evaporating apparatus, the combination, with an inclosing case provided with a series of vertically-arranged evaporating-snrfaces, and liquid-supplies for said surfaces, located above the same, to discharge the liquid upon the said surface in thin sheet or film., of a substantially vertical partition dividing the said inclosing case into sections arranged side by side, aVapor-outlet pipe for one section connected to the second section outside of the said case to constitute the heatconducting pipe for said second section, and a pump connected to the liquid-outlet of one section and to the liquid-inlet of another section, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

THOMAS GAUNT.

Vitnesses:

JAs. H. CHURCHILL, EMMA J. BENNETT.

IOO 

